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Sweetheart vs Undefined - What's the difference?

sweetheart | undefined |

As a noun sweetheart

is a person who is always very kind.

As an adjective undefined is

lacking a definition or value.

sweetheart

English

Noun

(en noun)
  • A person who is always very kind.
    • She is such a sweetheart , she never complains about me being late.
  • A person very much liked or loved by someone, especially when both partners are young.
    • John married his highschool sweetheart in 1981.
  • A female member of a college or university fraternity.

    • Synonyms

    * (kind) sweetie. * (romantic term of endearment) dear, darling, sweetie.

    Derived terms

    * sweetheart deal * sweetheart neckline * sweetheart tax

    Related terms

    * sweet * sweetie

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined